Home / 137,860.20-206,828.70-67,741.80

Finding the Fourth Proportional to 137,860.20, 206,828.70 and 67,741.80

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Solution

The fourth proportional to 137,860.20, 206,828.70 and 67,741.80 is: 101,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,860.20 : 206,828.70 = 67,741.80 : x
  2. Step 2: Convert to fraction form
    137,860.20/206,828.70 = 67,741.80/x
  3. Step 3: Cross multiply
    137,860.20x = 206,828.70 × 67,741.80
  4. Step 4: Simplify right side
    137,860.20x = 14,010,948,429.66
  5. Step 5: Solve for x
    x = 14,010,948,429.66/137,860.20
  6. Step 6: Final answer
    x = 101,631.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.